388196872 has 64 divisors (see below), whose sum is σ = 850953600. Its totient is φ = 162585600.

The previous prime is 388196867. The next prime is 388196891. The reversal of 388196872 is 278691883.

It is a super-2 number, since 2×388196872² = 301393622861168768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967872 + ... + 968272.

It is an arithmetic number, because the mean of its divisors is an integer number (13296150).

Almost surely, 2^388196872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388196872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425476800).

388196872 is an abundant number, since it is smaller than the sum of its proper divisors (462756728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

388196872 is a wasteful number, since it uses less digits than its factorization.

388196872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 762 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 52.

The square root of 388196872 is about 19702.7123005946. The cubic root of 388196872 is about 729.4866422663.

The spelling of 388196872 in words is "three hundred eighty-eight million, one hundred ninety-six thousand, eight hundred seventy-two".